Device to device communication method and apparatus

A method of a base station for supporting a device to device (D2D) communication method, the method comprising:

• generating resource configuration information comprising first information indicating D2D transmission resources for D2D discovery and second information indicating D2D reception resources for D2D discovery;
• and
• transmitting the resource configuration information to at least one user equipment (UE) in a serving cell,
• wherein the D2D transmission resources are used for transmitting a D2D discovery signal by the at least one UE in the serving cell, and the D2D reception resources are used for receiving at least one D2D discovery signal transmitted by another UE on a same frequency as the serving cell,
• wherein the D2D transmission resources indicated by the first information are commonly used by UEs in the serving cell, and
• wherein the D2D transmission resources are used by the UE in an idle state for transmitting the D2D discovery signal.

An apparatus of a user equipment (UE) for device to device (D2D) communication, the apparatus comprising:

• a transceiver configured to:
• receive resource configuration information from a base station, the resource configuration information comprising first information indicating D2D transmission resources for D2D discovery and second information indicating D2D reception resources for D2D discovery, and
• transmit a D2D discovery signal on the D2D transmission resources indicated in the first information;
• and
• a controller configured to monitor the D2D transmission resources indicated by the first information and the D2D reception resources indicated by the second information to receive at least one D2D discovery signal transmitted by another D2D UE on a same frequency as a serving cell,
• wherein the D2D transmission resources indicated by the first information are commonly used by UEs in the serving cell, and
• wherein the D2D transmission resources are used by the UE in an idle state for transmitting the D2D discovery signal.

An apparatus of a base station for supporting device to device (D2D) communication, the apparatus comprising:

• a controller configured to generate resource configuration information comprising first information indicating D2D transmission resources for D2D discovery and second information indicating D2D reception resources for D2D discovery;
• and
• a transceiver configured to transmit the resource configuration information to at least one user equipment (UE) in a serving cell,
• wherein the D2D transmission resources are used for transmitting a D2D discovery signal by the at least one UE in the serving cell, and the D2D reception resources are used for receiving at least one D2D discovery signal transmitted by another UE on a same frequency as the serving cell,
• wherein the D2D transmission resources indicated by the first information are commonly used by UEs in the serving cell, and
• wherein the D2D transmission resources are used by the UE in an idle state for transmitting the D2D discovery signal.